Perhaps you should try some spelling variations:
"supply crowd irrigation schemes." » "supply crowd irrigation scheme.", "supply crowd irrigation systems.", "supply crop irrigation schemes.", "supply flood irrigation schemes.", "supply from irrigation schemes.", "supply growth irrigation schemes.", "supply cost irrigation schemes."
"supply crowd testing services." » "supply crowd existing services.", "supply crowd lending services.", "supply crowd training services.", "supply ground testing services.", "supply food testing services.", "supply load testing services.", "supply growth testing services.", "supply cost testing services.", "supply from testing services."

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply crowd testing services.\") OR (\"supply crowd irrigation schemes.\"))~".
• Removing quotes may allow a broader search: (( supply crowd testing services. ) OR ( supply crowd irrigation schemes. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply crowd testing services.") OR ("supply crowd irrigation schemes."))*.